I too would like to learn to make my own strings. A higher priority for me, though, is working on my form and accuracy. I certainly would not waste my time working with what is a known sub-standard string.
I had a Bowyer supplied string fail and nearly lost a bow. One of the two string bundles broke right in the loop twist. The loop became so large, without my noticing it, that it popped off the nock on the 3rd or 4th shot. Scared the living daylights out of me, but the bow survived. Since then I've been using strings from recommended professional string makers and that's just one less thing I have to worry about. For the $20 - $28 involved, seems like cheap insurance to me.